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W83782D
Single Function Bipolar Analog Circuit in PQFP48 Package
W83782D
Single Function Bipolar Analog Circuit in PQFP48 Package
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Service & Packaging
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W83782D DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
GENERAL DESCRIPTION The W83781D/G is a hardware monitoring IC for personal computers, server computers, or microprocessor based systems. W83781D/G can be used to monitor several critical hardware parameters of the system, including power supply voltages, fan speeds, and temperatures, which are very important for a high-end computer system to work stablely and properly. W83781D provides both ISA and I2CTM serial bus interface. A 8-bit analog-to-digital converter (ADC) was built inside W83781D/G. The W83781D/G can monitor 3 external thermistor temperature sensors, 5 positive analog voltage inputs, two inverting inputs (for monitoring negative voltages), and also three fan tachometer outputs. There is also one input for case open detection circuits.FEATURES Monitoring Items • 3 thermal inputs from remote thermistors • 5 positive voltage inputs (typical for +12V, +5V, +3.3V, VcoreA, VcoreB) • 2 op amps for negative voltage monitoring (typical for -12V, -5V) • 3 fan speed monitoring inputs • Case open detection input • WATCHDOG comparison of all monitored values • Programmable hysteresis and setting points for all monitored itemsActions Enabling • Warning signal pop up in application software • Beep tone warning • Fan ON/OFF control • Issue SMI#, IRQ to activate system protectionGeneral • ISA and I2CTM serial bus interface • 5 VID input pins for CPU Vcore identification • Initial power fault beep (for +3.3V, VcoreA) • Master reset input to W83781D/G • Independent power plane of digital Vcc and analog Vcc (input to IC) • Intel LDCMTM compatible • Winbond monitoring application software support • Input clock rate optional for 24, 48, 14.318 MHzPackage • 48-pin LQFP
Key Features
- Monitoring Items
- 3 thermal inputs from remote thermistors
- 5 positive voltage inputs (typical for +12V, +5V, +3.3V, VcoreA, VcoreB)
- 2 op amps for negative voltage monitoring (typical for -12V, -5V)
- 3 fan speed monitoring inputs
- Case open detection input
- WATCHDOG comparison of all monitored values
- Programmable hysteresis and setting points for all monitored items
- Actions Enabling
- Warning signal pop up in application software
- Beep tone warning
- Fan ON/OFF control
- Issue SMI#, IRQ to activate system protection
- General
- ISA and I2CTM serial bus interface
- 5 VID input pins for CPU Vcore identification
- Initial power fault beep (for +3.3V, VcoreA)
- Master reset input to W83781D/G
- Independent power plane of digital Vcc and analog Vcc (input to IC)
- Intel LDCMTM compatible
- Winbond monitoring application software support
- Input clock rate optional for 24, 48, 14.318 MHz
- Package
- 48-pin LQFP
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Rohs Code | No | Part Life Cycle Code | Obsolete |
| Part Package Code | QFP | Pin Count ! | 48 |
| Reach Compliance Code | HTS Code ! | 8542.39.00.01 | |
| Additional Feature ! | WATCHDOG COMPARISON OF ALL MONITORED VALUES | Analog IC - Other Type | ANALOG CIRCUIT |
| JESD-30 Code | S-PQFP-G48 | JESD-609 Code | e0 |
| Length | 7 mm | Number of Functions | 1 |
| Number of Terminals | 48 | Operating Temperature-Max | 70 °C |
| Operating Temperature-Min | Package Body Material | PLASTIC/EPOXY | |
| Package Code | LFQFP | Package Equivalence Code | QFP48,.35SQ,20 |
| Package Shape | SQUARE | Package Style | FLATPACK, LOW PROFILE, FINE PITCH |
| Power Supplies ! | 5 V | Qualification Status ! | Not Qualified |
| Seated Height-Max | 1.6 mm | Supply Voltage-Max (Vsup) | 5.5 V |
| Supply Voltage-Min (Vsup) | 4.5 V | Supply Voltage-Nom (Vsup) | 5 V |
| Surface Mount ! | YES | Technology | BIPOLAR |
| Temperature Grade ! | COMMERCIAL | Terminal Finish | TIN LEAD |
| Terminal Form ! | GULL WING | Terminal Pitch ! | 0.5 mm |
| Terminal Position | QUAD | Width | 7 mm |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
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